A corpora



E. H. HOWARD.

SPOTLIGHT.

APPLICATION FILED MOV. 3. 1919.

Patented July 19, 1921.

far] H Howard UNITED STATES PATENT OFFICE.

EABILH. HOWARD, F LOS ANGELES, CALIFORNIA, ASSIGNOR T0 GILFILLAN BROS.SLIELTING REFINING COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORA-it'roit or CALIFORNIA.

SPTLIGHT.

Specification of Letters Patent.

Patented July 19, 1921.

Application led November 3, 1919. Serial No. 335,331.

To all whomit'may concern.' f

e it known that I. EARL Il. HowAnn, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles, State ofCalifornia, have invented new and useful Im rovements in Spotlights, ofwhich the fol owing is a specification.

This invention refers to spotlights for automobiles and particularly tothe means of holding and securing the lamp reflector and lamp socket tothe supporting standard in a simple manner and effectively.

ne form of the invention embodies a vertical lamp socket holdingstandard which, at one end, in a socket which isa part of a universaljoint (not shown) and, at the other end has a head which holds the lampsockets. Inside the head and around the lamp socket I place alongitudinally slit tube, the tube at one end being flanged and to holdthe reflector and at the other end being slit so that lateral pressuremay be ut on it to hold the lamp socket in place. he reflector' flangeis held in place between the lamp socket holding standard and the re-Hector.

In one form I use a longitudinally slit tube which extends back past thestandard head and on which I place a screw threaded nut. The threads onthe tube and nut are tapered So that tightening on the nut forces thetube pieces tightly around the lamp socket. In another form, I use a setscrew in the standard head, serving to hold the split tube in place inthe head and serving also to compress one of the split parts of the tubeagainst the lamp socket to hold it in adjusted position. y

The device, in all, has a sightly appearance, is easy to operate and issimple in construction.

In the drawings I have shown preferred forms of my invention, in which-Figure 1 is a partial longitudinal central section showing one form ofmy invention; Fig. 2 is a section taken on line 2 2 on Fig. 1; Fig. 3 isa section showing a modified form of device; and Fig. 4 is a sectiontaken on line 4 4 of Fig. 3.

Referring now particularly to Figs. 1 and 2: The numeral 10 designates alamp holding socket adapted to hold a lamp at one end and handle 11 atthe other end. This socket is normally placed as shown in Fig, 1 andaround socket 10 I place tube 13,

the socket being longitudinally movable within the tube. The tube 13 isslit longitudinally at 131 and enough clearance is left between thesplit pieces so that one piece may be pressed down or all drawn togetherto tighten the tube around the socket. The other end of the tube isIliade with a flange 13" as shown in Fig. 1. the inner edge of reflector14 being fitted thereon. The back surface of the flange 13" isconical.and the reflector at its center is correspondingly shaped to receive theflange; so that the forward surface of the flange is flush with theinner reflector surface. Tube 13 is screwthreaded and isscrew-threadedly engaged by Standard head 15. Between standard 15 andreflector 1-1 I place loose flange 1G. By screwing tube 13 tightly intothe standard head. the reflector is held back tightly against the flange16 and the flange is held between the reflector and the forward end ofhead 15. Around tube 13 I provide a wide shallow groove 13C in which setscrew 17 engages. Screwing down on set screw 17 presses one of the splitpieces down on socket 1() and thereby holds socket 1H tightly inadjusted position. For 'focusing adjustment the set screw is loosenedand socket 10 may be moved forward or backward. thus moving the lightwith relation to the reflector 14. The set screw 17 also sets tube 13 inthe head. preventing it from becoming unsecured.

In the form shown in Figs. 3 and 4 I extend the split part of the tube.as shown at 20. The extended part is taper threaded. Set nut 21 is alsotaper threaded and screw threadcdly fits over the split end andtightening on this nut therefore presses the split end tightly aroundsocket 10. Nut 21 may also serve as a lock nut. in that it may abutstandard head 15 and hold the tube from unscrewing from the standard.

The remainder of the construction in this form is the same as that shownin Fig. 1. with the exception that no set screw is needed and thatflange 16 is partly screwthreaded as shown at 16, the flange 16 in thiscase being screwed on the tube 13.

From the foregoing it will be seen that my invention comprises asightly. simple and efficient device to hohl a reflector and a lampsocket for a spotlight; one that may be easily and cheaply manufactured.and easily assembled and adjusted.

lhile I have here described my preferred form of invention in specificdetail I have done so for the purpose of making it clearly understoodand not for the purpose of limiting the invention to the particularthings here detailed, such modifications as come within the scope of thefollowing claims beinO within the purview of my invention.

Iaving described a preferred form of my invention, I claim:

l. In a device of the class described, a standard having, a boretherein, a lamp socket in said bore, a tube around said socket,` saidtube being flanged at one end and longitudinally slit at the other end,said tube being formed with a circumferential groove, a reflector heldby said flange, a flange around said tube and against the outer face ofthe reflector, the tube being screw-threaded into said bore, and theflange around the tube being held between the reflector and thestandard, and means passing through said standard and projecting intosaid groove in the tube serving to compress the slit part of the tubeagainst the lamp socket and to hold the tube against unser-ewing fromthe standard.

2. In a device of the character described,y

a standard, a lamp holding socket, a tube flanged at one end andlongitudinally slit at the other end, a reflector held by said flange, aloose flange around said tube and against the reflector, the tube beingscrew threaded into the standard and the flange being held between thereflector and the standard, and means passing through the standard andserving to compress the slit part of the tube laterally against the lampsocket and to hold the tube within the standard.

In a device of the character described,

a standard, a lamp holding socket, a tube flz'tnged at one end andlongitudinally slit at the other end, a reflector held by said flange, aloose flange around said tube and against the reflector, the tube beingscrew threaded into the standard and the flange being held between thereflector and the standard, and means to compress the slit part of thetube laterally against the lamp socket, said means 'embodying a memberwhich also sets the tube against unscrewing from the standard.

l. In a spotlight, a standard having a screw threaded head adapted tohold a lamp socket, a screw threaded tube surrounding the socket andscrewing into the head, one end of said tube being split and a flange onthe other end thereof, a reflector fitting against said flange, and areinforcing flange fitting around the tube and against the reflector',the reinforcing flange abutting the head, and means serving both totightly hold the split part of the tube around said lamp holding socketand to prevent the tube from unscrewing from the standart.

5. In a device of the character described, a lamp holding socket, aflanged tube having coinpressible slit portions surrounding said socket,a reflector held by said flange, a headed standard around said tube, andmeans serving` both to compress the slit portion of said tube tightly onthe lamp socket and to hold the standard tightlyin position upon saidtube.

In witness that I claim the foregoing I have hereunto subscribed my namethis llth day of October, 1919.

EARL I-I. HOWARD. lVitness:

VIRGINIA BERINGER.

